.cred {
    color: red;
}
.cblue {
    color: blue;
}
.cgreen {
    color: green;
}
.fwn {
    font-weight: normal;
}
.fwb {
    font-weight: bold;
}

.tal {
    text-align: left;
}
.tac {
    text-align: center;
}
.tar {
    text-align: right;
}

.fl {
    float: left;
}
.fr {
    float: right;
}
.cb {
    clear: both;
}

.dn {
    display: none;
}
.db {
    display: block;
}
.di {
    display: inline;
}